Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.

Dr. Patrick Michael O'Leary, DO

Individual provider Addiction Medicine (Preventive Medicine) Physician · NPI 1164818084

Dr. Patrick Michael O'Leary, DO is an Addiction Medicine (Preventive Medicine) Physician in Mansfield, Ohio. Practices as a sole proprietor and works from 5 locations. Licensed in Ohio.

Licensed in
OH
In the registry since
2015
Specialties on file
2
What do these letters mean?
DO — Doctor of Osteopathic Medicine
A fully licensed physician, trained like an MD with additional musculoskeletal training. Equivalent practice rights in all 50 states.

See every abbreviation used in this directory →

Practice location Address checks out

580 Park Ave W
Mansfield, OH 44906-3722
Phone: (833) 510-4357
Show map & directions

Pin is approximate — placed at the ZIP-code centre, not the exact door.

Additional practice locations (4)

  • 4873 Glenwood St Apt 1, Mission, KS 66202-1499 — (913) 523-3880
  • 606 Central Ctr, Chillicothe, OH 45601-2248 — (913) 523-3880
  • 4660 Roberts Rd, Columbus, OH 43228-9671 — (513) 834-7063
  • 1590 Coal Run Road, Zanesville, OH 43701 — (913) 523-3880

Specialties & licences

General Practice Physician (primary) Taxonomy 208D00000X · Licence 34.013158 (OH)
Addiction Medicine (Preventive Medicine) Physician Taxonomy 2083A0300X · Licence 34.013158 (OH)

Record details

NPI number1164818084
Entity typeIndividual (Type 1)
GenderMale
Credentials DO
Sole proprietorYes
NPI enumeratedApril 7, 2015
Last updated in NPPESNovember 11, 2025
Certification dateNovember 11, 2025
Mailing address4600 Montgomery Rd Ste 400, Cincinnati, OH 45212-2600